[R] question about boxplot

[Stephen Tucker]

You can also set axes=FALSE as in

boxplot( p.prop ~ R  + bins, axes=FALSE )

and then add your own labels with axis(). the argument 'at' for axis() in the
case of boxplots are usually integers going from 1 to # of groups, though I
don't know specifically for your crossed factors.

For rotated names, you probably want to set axis(#arguments#,labels=FALSE)
and then use text() with 'srt' (don't forget to use xpd=TRUE in text()).
par("cxy") may help with positioning text relative to axis.

all the best,

st


--- Michael Kubovy <kubovy at virginia.edu> wrote:

> On Feb 22, 2007, at 2:56 PM, Smith, Phil ((CDC/CCID/NCIRD)) wrote:
> 
> > boxplot( p.prop ~ R  + bins )
> >
> > This command makes nice boxplot for the factor "R" crossed with the  
> > factor "bins".
> >
> > I am having alot of trouble getting control of the labels on the X  
> > axis. I want to control it more by specifying what the labels are,  
> > controling the 'size' of those labels (by using cex), and then  
> > control the rotation of the character strings of those labels (by  
> > using srt or crt).
> >
> > There is a "names" argument to boxplot, but I haven't had much luck  
> > controlling what it prints, the size of the font, and the character  
> > rotation.
> 
> Would you consider an easy way out---an alternative with reasonable  
> defaults?
> 
> data(ToothGrowth)
> bwplot(dose ~ len | supp, ToothGrowth)
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